Quiz Round 2: Chemistry & Materials

28 July 2020

CHEMISTRY

A gloved scientist pours purple liquid from a beaker into a conical flask.

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Question

Bhavesh, Megan, and Chris took on these chemistry questions. How would you have done? Answers at the bottom!

Bhavesh

  1. Marie Curie discovered two new elements, both of which are highly radioactive. Name one.
  2. During the process of fermentation, glucose is converted into ethanol plus what?
  3. What is its mass number if an atom contains 8 protons, 8 electrons, and 10 neutrons?
  4. Is a diamond considered a metal, a ceramic, or a composite?
  5. Table sugar is what type of sugar - made up of linked molecules of glucose and fructose?
  6. What are solar panels made of? It's an element commonly associated with electronics.
  7. True or false: metals are good conductors of both electricity and heat.
  8. True or false: ‘chaperonins’ are proteins in the body that help other proteins fold.
  9. What's the difference between an element and a compound?
  10. Finish this joke: how often do chemists make jokes?

Megan

  1. Fool’s gold is a compound made up of iron and what yellow element?
  2. Is milk acidic, alkaline, or neutral?
  3. What elements do all organic compounds contain?
  4. Is concrete a metal, a ceramic, or a composite?
  5. In photosynthesis, plants produce sugar and oxygen by taking in carbon dioxide and what compound?
  6. What noble gas is used in low-voltage lamps for its distinctive orange-red glow?
  7. True or false: ceramics have low melting points.
  8. What term describes substances that repel water?
  9. How many elements are there in the periodic table?
    A) 118
    B) 152
    C) 211
  10. Finish this joke: a neutron walks into a bar and orders a drink. The bartender says:

Chris

  1. What precious metal is the best conductor of electricity at room temperature?
  2. The enzyme ‘rennin’ is typically used to make what food?
  3. What do you call an atom with more protons than electrons - an anion or a cation?
  4. Is paper a metal, a ceramic, or a composite?
  5. Name any naturally-occurring polymer.
  6. What is the most common element in the universe?
  7. True or false: atoms can form into a crystal, but molecules can't.
  8. A covalent bond is a chemical bond where atoms share what?
  9. What does the pH scale measure?
  10. Finish this joke: why can you never trust atoms?

Answer

Bhavesh

  1. Radium or polonium
  2. Carbon dioxide
  3. 18 - the sum of the protons and neutrons
  4. A ceramic
  5. Sucrose
  6. Silicon
  7. True
  8. True
  9. Compounds contain multiple elements (in fixed ratios)
  10. Periodically!

Megan

  1. Sulphur
  2. Slightly acidic
  3. Carbon and hydrogen
  4. A composite
  5. Water
  6. Neon
  7. False
  8. Hydrophobic
  9. A) 118
  10. For you, no charge!

Chris

  1. Silver
  2. Cheese
  3. Cation
  4. A composite
  5. Starch, cellulose, chitin, gum, animal proteins, rubbers, DNA/RNA, lignin, and many others
  6. Hydrogen
  7. False
  8. Electrons
  9. Acidity
  10. They make up everything!

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